If anyone is interested in making their sight pins brighter, I have found an excellent product. It's called fitz fiber. I'm not affiliated with this company in any way, just read a lot of reports on another archery website and decided to give it a try.
This fiber optic is unbelieveably bright and easy to work with. I placed my order Monday night at 11:30 pm and got my fiber in the mail today. I replaced the fiber optics ina Sword sight pin and could not believe how much brighter the pin was.This fiber really has to be seen to be believed. Here is a link to their website.
http://www.fitzfiber.com/